break through vs conquest

break through

verb
  • To gain popularity. 

  • To penetrate the defence of the opposition. 

  • To make or force a way through (a barrier) 

  • Used other than figuratively or idiomatically: see break, through. 

conquest

verb
  • To compete with an established competitor by placing advertisements for one's own products adjacent to editorial content relating to the competitor or by using terms and keywords for one's own products that are currently associated with the competitor. 

noun
  • Victory gained through combat; the subjugation of an enemy. 

  • That which is conquered; possession gained by force, physical or moral. 

  • An act or instance of overcoming an obstacle. 

  • A competitive mode found in first-person shooter games in which competing teams (usually two) attempt to take over predetermined spawn points labeled by flags. 

  • A person whose romantic affections one has gained, or with whom one has had sex, or the act of gaining another's romantic affections. 

How often have the words break through and conquest occurred in a corpus of books? (source: Google Ngram Viewer )